Hll 2017-Second 8 weeks Oct 16 Math 1342 Homework: Homework 3 Chapters 6 and 7 F

Question

Hll 2017-Second 8 weeks Oct 16 Math 1342 Homework: Homework 3 Chapters 6 and 7 Fall 2017 Score: 0 of 2 pts .4.19 Hw Score: 57 19%, 57 1301100 pes Assume that the sample is a sile random sample oftained om a normally tbued popalstion of 1Q scones of saitics professors Use the table bekow to Sind the minimum sample size needed tobemco hlert Bat the sample standard drvinen s h wein 20% odo htin sa ple she practi? 95% conkkrn that sh tse val-date sample size n hszos 768|192| 48 21 12 be at leasd 1380 38 05 22 1 The meinum sample e needed Enter your answer in the answer box and then click Check Aswer To see what to study next go to your Study Plan

Explanation / Answer

from table

99% confidence interval

within 20 % od sd

sample size required = 85

hence 85 is correct answer

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